commit https://github.com/vim/vim/commit/ddf8d1c746ee081d15c9d7e0515f6ac43adbf363 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 20 11:22:54 2016 +0200 patch 7.4.1945 Problem: The Man plugin doesn't work that well. Solution: Use "g:ft_man_open_mode" to be able open man pages in vert split or separate tab. Set nomodifiable for buffer with man content. Add a test. (Andrey Starodubtsev, closes #873)

" Vim filetype plugin file
" Language:	hg (Mercurial) commit file
" Maintainer:	Ken Takata <kentkt at csc dot jp>
" Last Change:	2016 Jan 6
" Filenames:	hg-editor-*.txt
" License:	VIM License
" URL:		https://github.com/k-takata/hg-vim

if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

setlocal nomodeline

let b:undo_ftplugin = 'setl modeline<'